// ISO15693 commons
// Adrian Dabrowski 2010 and others, GPLv2
// Christian Herrmann 2018

#ifndef ISO15693_H__
#define ISO15693_H__

#include "proxmark3.h"
#include <stdint.h>
#include <stdlib.h>
#include "crc16.h"

// REQUEST FLAGS
#define ISO15_REQ_SUBCARRIER_SINGLE	0x00	// Tag should respond using one subcarrier (ASK)
#define ISO15_REQ_SUBCARRIER_TWO	0x01	// Tag should respond using two subcarriers (FSK)
#define ISO15_REQ_DATARATE_LOW		0x00	// Tag should respond using low data rate
#define ISO15_REQ_DATARATE_HIGH		0x02	// Tag should respond using high data rate
#define ISO15_REQ_NONINVENTORY		0x00
#define ISO15_REQ_INVENTORY			0x04	// This is an inventory request - see inventory flags
#define ISO15_REQ_PROTOCOL_NONEXT	0x00
#define ISO15_REQ_PROTOCOL_EXT		0x08	// RFU

// REQUEST FLAGS when INVENTORY is not set
#define ISO15_REQ_SELECT			0x10	// only selected cards response
#define ISO15_REQ_ADDRESS			0x20	// this req contains an address
#define ISO15_REQ_OPTION			0x40	// Command specific option selector

//REQUEST FLAGS when INVENTORY is set
#define ISO15_REQINV_AFI			0x10	// AFI Field is present
#define ISO15_REQINV_SLOT1			0x20	// 1 Slot
#define ISO15_REQINV_SLOT16			0x00	// 16 Slots
#define ISO15_REQINV_OPTION			0x40	// Command specific option selector

//RESPONSE FLAGS
#define ISO15_RES_ERROR				0x01
#define ISO15_RES_EXT				0x08	// Protocol Extention	

// RESPONSE ERROR CODES
#define ISO15_NOERROR				0x00
#define ISO15_ERROR_CMD_NOT_SUP		0x01	// Command not supported
#define ISO15_ERROR_CMD_NOT_REC		0x02	// Command not recognized (eg. parameter error)
#define ISO15_ERROR_CMD_OPTION		0x03	// Command option not supported
#define ISO15_ERROR_GENERIC			0x0F	// No additional Info about this error
#define ISO15_ERROR_BLOCK_UNAVAILABLE		0x10	
#define ISO15_ERROR_BLOCK_LOCKED_ALREADY	0x11	// cannot lock again
#define ISO15_ERROR_BLOCK_LOCKED			0x12	// cannot be changed
#define ISO15_ERROR_BLOCK_WRITE		0x13	// Writing was unsuccessful
#define ISO15_ERROR_BLOCL_WRITELOCK	0x14	// Locking was unsuccessful

// COMMAND CODES
#define ISO15_CMD_INVENTORY			0x01
#define ISO15_CMD_STAYQUIET			0x02
#define ISO15_CMD_READ				0x20
#define ISO15_CMD_WRITE				0x21
#define ISO15_CMD_LOCK				0x22
#define ISO15_CMD_READMULTI			0x23
#define ISO15_CMD_WRITEMULTI		0x24
#define ISO15_CMD_SELECT			0x25
#define ISO15_CMD_RESET				0x26
#define ISO15_CMD_WRITEAFI			0x27
#define ISO15_CMD_LOCKAFI			0x28
#define ISO15_CMD_WRITEDSFID		0x29
#define ISO15_CMD_LOCKDSFID			0x2A
#define ISO15_CMD_SYSINFO			0x2B
#define ISO15_CMD_SECSTATUS			0x2C

char* Iso15693sprintUID(char *target, uint8_t *uid);

//-----------------------------------------------------------------------------
// Map a sequence of octets (~layer 2 command) into the set of bits to feed
// to the FPGA, to transmit that command to the tag.
// Mode: highspeed && one subcarrier (ASK)
//-----------------------------------------------------------------------------

	// The sampling rate is 106.353 ksps/s, for T = 18.8 us

	// SOF defined as
	// 1) Unmodulated time of 56.64us
	// 2) 24 pulses of 423.75khz
	// 3) logic '1' (unmodulated for 18.88us followed by 8 pulses of 423.75khz)

	static const int Iso15693FrameSOF[] = {
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
		-1, -1, -1, -1,
		-1, -1, -1, -1,
		 1,  1,  1,  1,
		 1,  1,  1,  1
	};
	static const int Iso15693Logic0[] = {
		 1,  1,  1,  1,
		 1,  1,  1,  1,
		-1, -1, -1, -1,
		-1, -1, -1, -1
	};
	static const int Iso15693Logic1[] = {
		-1, -1, -1, -1,
		-1, -1, -1, -1,
		 1,  1,  1,  1,
		 1,  1,  1,  1
	};

	// EOF defined as
	// 1) logic '0' (8 pulses of 423.75khz followed by unmodulated for 18.88us)
	// 2) 24 pulses of 423.75khz
	// 3) Unmodulated time of 56.64us
	static const int Iso15693FrameEOF[] = {
		 1,  1,  1,  1,
		 1,  1,  1,  1,
		-1, -1, -1, -1,
		-1, -1, -1, -1,
		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
		 1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,  1,
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
		-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
	};

#endif